INSERT INTO DEPARTMENT(DEPT_CODE,START_DATE,END_DATE,DEPT_NAME,LAYER,UP_DEPT_CODE,VALID_FLG,UPDATE_USER_NAME,ISER_UPDATE_DATETIME)
VALUES(
    'B300',
    '2023-04-01',
    NULL,
    '新設部門',
    LAYER,
    UP_DEPT_CODE,
    '1',
    '2023-04-01 00:00:00')
SELECT LAYER,UP_DEPT_CODE FROM DEPARTMENT WHERE DEPT_CODE='A100'
UPDATE
    DEPARTMENT
SET
    END_DATE = '2023-03-31',
    VALID_FLG = '0',
    UPDATE_USER_NAME = 'ORG_CHG',
    USER_UPDATE_DATETIME = '2023-03-31 23:59:59'
WHERE 
    DEPT_CODE='A100'
    OR DEPT_CODE='A200';
UPDATE 
    EMP
SET 
    DEPT_CODE ='B300',
    START_DATE = '2023-04-01',
    UPDATE_USER_NAME = 'ORG_CHG',
    USER_UPDATE_DATETIME = '2023-04-01 00:00:00'
WHERE
    VALID_FLG = '1'
    AND DEPT_CODE='A100';
SELECT * FROM DEPARTMENT